[Blueprint servercloud-r-juju-appserver-support] Juju support for application server technologies (Django, JEE, RoR, etc)

[Bruno Girin]

Blueprint changed by Bruno Girin:

Whiteboard changed:
  User Stories:
  
  As a sysop, I want to deploy a web application container on a cloud
  node.
  
  As a developer, I want to create a Juju charm to deploy my web
  application on any compatible container. Example of compatible
  container: Django app => Django container; JEE .war => servlet container
  (e.g. Apache Tomcat) or JEE app server (e.g. JBoss); JEE .ear or .jar =>
  JEE app server (e.g. JBoss)
  
  As a sysop, I want to deploy a web application onto a compatible
  container node.
  
  As a sysop, I want to define a named data source in a web app node and
  add a relationship to a database node for that data source.
  
  Risks:
  
  Test Plans:
  
  Release Note:
+ 
+ Why is this important
+ - Application servers come before Apps
+ - Private/Enterprise apps are more numerous than public apps
+ - Deployment needs to be easier/simpler because testing suffers when deployment is difficult
+ --- jitsu import/export for above ?
+ - Connect named resources to app without app specifically knowing about it
+ - Scalability as needed
+ 
+ PaaSish Ubuntu Juju mailing list:
+   -https://lists.ubuntu.com/archives/juju/2012-October/001910.html
+   
+ Improving framework/infrastructure service charms on Juju mailing list:
+   -https://lists.ubuntu.com/archives/juju/2012-September/001884.html
+ 
+ List of possible technologies to take into account:
+ mediawiki
+ Django
+ MongoDB
+ Postgres
+ MySQL
+ node.js
+ rails/rack-esque
+ memcacheD
+ varnish
+ redis
+ rabbit
+ Pyramid
+ Sensu
+ Logstash
+ rsyslog
+ WordPress
+ 
+ Possible implementation options (may not be mutually exclusive):
+ # App-by-Subordinate
+ juju deploy django
+ juju deploy myapp # <---- subordinate
+ juju add-relation django myapp
+ juju deploy mysql app-db-1
+ juju add-relation app-db-1 django # <---- relation handled by django via ORM layer
+ juju deploy mongodb
+ juju add-relation myapp mongodb # <---- relation handled by the app itself
+ --
+ # App-by-Config
+ juju deploy django --set app-src=git://....
+ --
+ # App-by-Fork
+ bzr branch lp:charms/django myapp

-- 
Juju support for application server technologies (Django, JEE, RoR, etc)
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-r-juju-appserver-support